172P/Yeung
Orbital Elements
The following orbital elements are taken from MPC 54825:172P/Yeung Epoch 2008 Oct. 21.0 TT = JDT 2454760.5 T 2008 Oct. 12.8362 TT MPC q 2.240466 (2000.0) P Q n 0.1498375 Peri. 178.9977 -0.7759726 +0.6175212 a 3.510663 Node 40.0884 -0.5800975 -0.6186018 e 0.361811 Incl. 11.5180 -0.2476961 -0.4857977 P 6.58 From 110 observations 1993-2003, mean residual 0".5.Elements are also available for the current standard epoch:
172P/Yeung Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 T 2008 Oct. 13.7322 TT MPC q 2.241936 (2000.0) P Q n 0.1492796 Peri. 179.3842 -0.7734246 +0.6207892 a 3.519403 Node 39.9408 -0.5824315 -0.6161364 e 0.362978 Incl. 11.5188 -0.2501758 -0.4847646 P 6.60An explanation of the orbital elements is available.
These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.
Ephemeris
The following ephemeris is at intervals of five days. A daily ephemeris covering the same time interval is also available.Personalized ephemerides for this (and other) objects may be generated using the Minor Planet & Comet Ephemeris Service.
Recent magnitude estimates for this comet (as reported to the ICQ) may be available.
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2WARNING! 2009 10 26 20 17.44 -31 47.9 3.120 3.222 86.8 17.9 20.6 21.9 2009 10 31 20 22.00 -31 16.5 3.207 3.240 83.0 17.7 20.6 22.0 2009 11 05 20 26.83 -30 44.6 3.294 3.257 79.2 17.4 20.7 22.1 2009 11 10 20 31.92 -30 12.1 3.380 3.275 75.5 17.0 20.8 22.1 2009 11 15 20 37.23 -29 39.0 3.465 3.293 71.8 16.6 20.9 22.2 2009 11 20 20 42.74 -29 05.3 3.548 3.310 68.1 16.1 20.9 22.2 2009 11 25 20 48.43 -28 31.1 3.631 3.327 64.5 15.5 21.0 22.3 2009 11 30 20 54.27 -27 56.4 3.711 3.345 60.9 14.9 21.1 22.3 2009 12 05 21 00.23 -27 21.1 3.789 3.362 57.4 14.3 21.2 22.3 2009 12 10 21 06.30 -26 45.3 3.865 3.379 53.8 13.6 21.2 22.4 2009 12 15 21 12.47 -26 09.0 3.939 3.397 50.3 12.9 21.3 22.4 2009 12 20 21 18.71 -25 32.2 4.010 3.414 46.9 12.1 21.3 22.4 2009 12 25 21 25.00 -24 54.9 4.078 3.431 43.4 11.4 21.4 22.4 2009 12 30 21 31.35 -24 17.3 4.143 3.448 40.0 10.6 21.5 22.4 2010 01 04 21 37.72 -23 39.3 4.204 3.465 36.6 9.7 21.5 22.5 2010 01 09 21 44.11 -23 01.0 4.263 3.481 33.2 8.9 21.6 22.5 2010 01 14 21 50.51 -22 22.3 4.317 3.498 29.8 8.0 21.6 22.5 2010 01 19 21 56.91 -21 43.5 4.368 3.515 26.5 7.2 21.7 22.5 2010 01 24 22 03.30 -21 04.5 4.414 3.532 23.3 6.3 21.7 22.5 2010 01 29 22 09.67 -20 25.3 4.457 3.548 20.1 5.5 21.7 22.4 2010 02 03 22 16.00 -19 46.2 4.495 3.565 17.0 4.6 21.8 22.4 2010 02 08 22 22.30 -19 07.1 4.529 3.581 14.1 3.9 21.8 22.4 2010 02 13 22 28.56 -18 28.0 4.559 3.597 11.5 3.1 21.9 22.4 2010 02 18 22 34.77 -17 49.1 4.585 3.614 9.4 2.6 21.9 22.4 2010 02 23 22 40.92 -17 10.4 4.606 3.630 8.3 2.2 21.9 22.4 2010 02 28 22 47.00 -16 32.1 4.623 3.646 8.5 2.3 21.9 22.4 2010 03 05 22 53.01 -15 54.2 4.635 3.662 9.9 2.7 22.0 22.4 2010 03 10 22 58.95 -15 16.7 4.642 3.678 12.2 3.3 22.0 22.5 2010 03 15 23 04.81 -14 39.7 4.646 3.693 14.9 4.0 22.0 22.5 2010 03 20 23 10.57 -14 03.4 4.644 3.709 17.9 4.7 22.0 22.6 2010 03 25 23 16.24 -13 27.7 4.639 3.725 21.0 5.5 22.0 22.6 2010 03 30 23 21.80 -12 52.9 4.628 3.740 24.2 6.3 22.1 22.7 2010 04 04 23 27.26 -12 18.9 4.614 3.756 27.5 7.1 22.1 22.7 2010 04 09 23 32.59 -11 45.8 4.596 3.771 30.8 7.8 22.1 22.7 2010 04 14 23 37.81 -11 13.7 4.573 3.786 34.2 8.6 22.1 22.8 2010 04 19 23 42.89 -10 42.8 4.546 3.801 37.7 9.3 22.1 22.8 2010 04 24 23 47.84 -10 13.1 4.516 3.816 41.1 10.0 22.1 22.8 2010 04 29 23 52.63 -09 44.6 4.482 3.831 44.6 10.6 22.1 22.8 2010 05 04 23 57.26 -09 17.5 4.444 3.846 48.2 11.3 22.1 22.9 2010 05 09 00 01.73 -08 51.8 4.403 3.861 51.8 11.9 22.1 22.9 2010 05 14 00 06.02 -08 27.7 4.359 3.875 55.4 12.4 22.1 22.9 2010 05 19 00 10.11 -08 05.2 4.312 3.890 59.1 12.9 22.1 22.9 2010 05 24 00 14.00 -07 44.4 4.262 3.904 62.8 13.3 22.1 22.9 2010 05 29 00 17.67 -07 25.4 4.209 3.919 66.6 13.7 22.1 22.9 2010 06 03 00 21.11 -07 08.2 4.155 3.933 70.4 14.1 22.0 22.9 2010 06 08 00 24.31 -06 53.0 4.098 3.947 74.3 14.3 22.0 22.9 2010 06 13 00 27.24 -06 39.8 4.040 3.961 78.3 14.5 22.0 22.8 2010 06 18 00 29.90 -06 28.8 3.981 3.975 82.3 14.7 22.0 22.8 2010 06 23 00 32.26 -06 19.9 3.920 3.989 86.5 14.7 22.0 22.8 2010 06 28 00 34.32 -06 13.3 3.860 4.003 90.7 14.7 22.0 22.8 2010 07 03 00 36.04 -06 08.9 3.799 4.016 94.9 14.6 21.9 22.7 2010 07 08 00 37.43 -06 06.8 3.738 4.030 99.3 14.4 21.9 22.7 2010 07 13 00 38.45 -06 07.1 3.678 4.043 103.8 14.1 21.9 22.7 2010 07 18 00 39.10 -06 09.8 3.620 4.056 108.3 13.8 21.9 22.6 2010 07 23 00 39.36 -06 14.7 3.564 4.070 113.0 13.3 21.9 22.6 2010 07 28 00 39.24 -06 21.9 3.509 4.083 117.8 12.7 21.8 22.5 2010 08 02 00 38.71 -06 31.2 3.458 4.096 122.6 12.0 21.8 22.5 2010 08 07 00 37.78 -06 42.6 3.411 4.109 127.6 11.3 21.8 22.4 2010 08 12 00 36.45 -06 55.9 3.367 4.121 132.6 10.4 21.8 22.4 2010 08 17 00 34.74 -07 10.7 3.328 4.134 137.8 9.5 21.8 22.3 2010 08 22 00 32.66 -07 27.0 3.294 4.146 142.9 8.5 21.8 22.3 2010 08 27 00 30.24 -07 44.2 3.266 4.159 148.2 7.4 21.8 22.2 2010 09 01 00 27.52 -08 02.1 3.244 4.171 153.4 6.2 21.8 22.1 2010 09 06 00 24.52 -08 20.4 3.229 4.183 158.5 5.1 21.8 22.1 2010 09 11 00 21.31 -08 38.5 3.221 4.196 163.3 4.0 21.8 22.0 2010 09 16 00 17.94 -08 56.1 3.220 4.208 167.5 3.0 21.8 22.0 2010 09 21 00 14.48 -09 12.7 3.227 4.220 169.9 2.4 21.8 21.9 2010 09 26 00 10.98 -09 28.0 3.242 4.231 169.5 2.5 21.8 22.0 2010 10 01 00 07.51 -09 41.6 3.263 4.243 166.3 3.2 21.8 22.0 2010 10 06 00 04.13 -09 53.2 3.293 4.255 161.9 4.2 21.9 22.1 2010 10 11 00 00.91 -10 02.5 3.330 4.266 156.9 5.3 21.9 22.2 2010 10 16 23 57.90 -10 09.4 3.374 4.277 151.7 6.3 22.0 22.3 2010 10 21 23 55.16 -10 13.6 3.424 4.289 146.4 7.4 22.0 22.4 2010 10 26 23 52.71 -10 15.3 3.481 4.300 141.1 8.4 22.0 22.5 2010 10 31 23 50.59 -10 14.2 3.543 4.311 135.8 9.2 22.1 22.5 2010 11 05 23 48.84 -10 10.5 3.611 4.322 130.5 10.0 22.1 22.6 2010 11 10 23 47.45 -10 04.2 3.683 4.333 125.4 10.7 22.2 22.7 2010 11 15 23 46.45 -09 55.4 3.760 4.343 120.3 11.3 22.3 22.8 2010 11 20 23 45.84 -09 44.3 3.840 4.354 115.2 11.8 22.3 22.8 2010 11 25 23 45.61 -09 30.8 3.923 4.365 110.3 12.2 22.4 22.9 2010 11 30 23 45.75 -09 15.3 4.008 4.375 105.4 12.6 22.4 23.0This comet gets close to the sun during the period covered in the ephemeris below. Observers are warned to be wary of observing comets near the sun. NEVER point any kind of optical instrument at the sun--instant blindness will be the probable result.
